John wiison



f\ a gnitsh tetra @anni @ffmc `JOHN WIISON, OF ANDERSON COURT-HOUSE, SOUTH CAROLINA. Lettera Patent No. oeesjbzaefz July 9, 1867.

IMPROVED BURGLARALABM GUN.

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To ALL WHOM IT MAY coNoERN:

Be it known that I, JOHN WILSON, of.Anderson Court-House, Anderson county, South Carolina, have invented a new and improved Burglar-Alarm Gun;` und I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the nrt to make and use the some, reference being had to the accompanying drawings forming apart of-'this specification, in which- Figure 1, Sheet 1, is a plan or top (partly in section) view of my improved burglar-alarm gun.

Figure 2, Sheet 1, is a vertical cross-section 'of thesame, the -plane of section being indicated by the line x:c,iig.1.

4Figure 3, Sheet 2, is a plan or top'view of the catch whereby the revolving barrel is held in position.

Figure 4, .Sheet 2, is a detail horizontal sectional view, the plane of -sectionbeing indicated by the line yy, iig. 2. v i 'Similar letters of reference indicate corresponding parts.

This invention relates to a. burglaralurm that jconsists of a 'swivelled horizontal gnn-bar rel, 'so arranged in n frame that the saidgbgrrel can revolve on its vertical support. Suitable stops Meinl-ranged around the' barrel .whim ne its virer :essere spread 'assess the room rp- 'wkrsh who ations? sentirsi when 1i-- `burglar or other party not acquainted with the arrangement of the wires comes iu contact with one of the humo, the

stop which holds the shaft willbe released and the gunwill swing around and s trikeaguinst a' stop, endpoint towards the direction in which the wire is stretched. The striking ageinstthe stop willdiscburge the gun. `Thus in whatever place the burglar may strike one of the wires, the barrel will certainly swing around und point, i toward that direction, and will be discharged instantaneously after the wire has been. touched.

-A represents u wooden or other box' or freine,- made of the shape shown in the drawings, or oi` any other. i 'suitnble shape, in such a manner as to be of 'sniicient -strengthaud of suitable form forsupporting"audholding .the other fpartsfof the I nechanisin. vertical shaft, B, resting nponla step, a, and being held .iuplaice'by a' metal plate, C, issecurediu the block or'b'ed A,and is connected with a powerful clock-springQuD, which 'revolves the shaft n'oneidirection, when the' latter4 is disengaged from the stops that-hold in place.' To the shaft is rigidly secured a disk or circula'r'ange, 5, which is -provided with'a notch, as shown v in iig. 3. An l elbow-eath, c, that is pivoted to the head A, is pressed by a sprin g,d, against the circumference of the disk 'buf and the notch-in the same, as showniu'i'g; 'The sliaftis thus held in plucecndprevented'froinfrerolving by this notched disk t and spring-cntch .l OuV the upper end of the, shaft B is firmly secured, so as to turn with-1 theshuft', a gu'u, E, consisting of a barrel,` e, nipplef, homnier'g, main-spring l, and trigger z", as is'clearly shown in"g.1. :A dskF, provided with four or z nore notches .or recesses arranged-around itstcircumferenes, as

shown liu 5g; 4, its loosely around the shaft B, and has s pin, 7e, secured' to its ,under side', which when it Ol in contact with the outer arin 'o f the-spring-catch o, throws the'inner en'd of the lutter' out of the notch in tho disk and the shaft is then free to revo1v, 'being'moved fby the spring lD. 0n top of -theplate G are lpivoted four or more metal arms G, their nuinbper corresponding withthatotthenotches in the plate F. Ea'ohofthese' `anusispijovided with a pin, l, 'at its under surface,projectingthrongh a slot inthe plte' C, (shownf bylottedl lines in fig. 1) and'iittmg into-one of the notches in thediskF, ais-vindicated iugs. 2 and 4. At, its uppersu'ra4 fn, iit against one end of thearlii G, so as to holdthe let-torio p'ln'ce wliuthey are turned in, as shown-,in 6g. 1.

'.l he` opemtiou'is as follows The Boulbon-rel e is landed with .'powderandbpflis 'in the'. usual manner, 'the hauinie'r cocked,l (fig. 1,)'and- -perussiou-csp placed upon thenipplef.' i, Thegun-E-is turn d s o thatth'e catch c isin the notch in-'plute' b, as `shown in fig-3. The arms Gare all turned towards the shaft'B,asjshewn iii-iig,

l, -aud to euch' pinm is secured s wire, o, shown by red linesfin figs.' 1 and 2 {which isstretched radially'. with theshaft B as centre.. The'positiou of the parts-is then as vshown iuiigs. 1,'-3,"aud 4.` .As'soonas'auybodystrikes against one of the wires o, or touches the' samephiitgslightly, the arm G, to which'oneend of that wire is secured,' fisfthrown back, as shown by red lines ,inl Eg. 1; thereby tbe'pinl on that rn'z- G- is thrown against tbc' side of v the notch iii-plate F, and tho latter is turnedsuoient to let the pin lo strike against the vouterl arm off catch c,

und thusl release 'the shaft. The gun E-will then turn with the shaft untilu projection?, onxthc trigger z' strikes os,ss2 2 against the pin m on that arm which was moved by the wire. The'concussion is sulicent-to discharge the gun, which is thus pointing in the direction of the radial wire o, as shown by red lines in iig. 1 and in'g. 2. Thus, whichever wire is moved or touched, the gun will turn and stop when it is inline with the wire, and be discharged in that direction. The more wires are stretched, that is to sa thc more arms G are arranged, and the more notches are provided in the disk F, the greater will be the accuracy with which the gun can be made self-aiming. After it has been fired it will have to be re-loaded and re-set. By simply changing the position of the apparatus ythe wires will be arranged altogether diierent in a room, and great variation in the arrangement ofthe wires and of the different parts in this apparatus can be made.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. Tloarms G G, when pivoted, askshown, and when provided with pins land m, in combination with the Y springs H H, all made and operating substantially as'herein shown and described.

2. The gun E, when secured to a shaft, B, in combination with the disk b and spring-catch c, subfztantiaillyj as set forth.

3. 'The plate F, when secured loose on the shaft B, and when notched, as shown7 and provided withq a pin, v

c, in combination with the pins Z l, on the arms G, all made and operating substantially as set forth.

4. The trigger when provided with 'a downward projection, p, in combination with the pins m, as set forth. 5. The arms G, when connected with the wires o, so that by pulling on or touching the wire thearm' G- will be noved, and will serve to revolve the gun and to direct it towards the disturbed wire and'discharge the same, all as set forth. l l i 6. An alarm-gun made and operating substantially as herein shownand described.

v y JOHN WILSON.' Witnesses: L

WM. F. McNAMAnA, Arinx. F. Ronnn'rs. 

